diff --git a/stack/build.Dockerfile b/stack/build.Dockerfile
index 6dab997..cdbc024 100644
--- a/stack/build.Dockerfile
+++ b/stack/build.Dockerfile
@@ -2,4 +2,4 @@ FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
 USER root
 RUN mkdir -p /etc/buildpacks
 COPY ./images.json /etc/buildpacks/images.json
-RUN chmod 744 /etc/buildpacks/images.json
+RUN chmod 644 /etc/buildpacks/images.json